Finding the Fourth Proportional to 249,859.75, 344,805.37 and 135,138.50
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Solution
The fourth proportional to 249,859.75, 344,805.37 and 135,138.50 is: 186,490.55
Step by Step Solution
- Step 1: Write the proportion equation
249,859.75 : 344,805.37 = 135,138.50 : x - Step 2: Convert to fraction form
249,859.75/344,805.37 = 135,138.50/x - Step 3: Cross multiply
249,859.75x = 344,805.37 × 135,138.50 - Step 4: Simplify right side
249,859.75x = 46,596,481,017.91 - Step 5: Solve for x
x = 46,596,481,017.91/249,859.75 - Step 6: Final answer
x = 186,490.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.